Charmed
Love Spit Love's cover of 'How Soon Is Now?' over the Book of Shadows and three sisters, re-cut every season. It goes further than that, though: the credits were rebuilt whenever the cast of an episode changed, so a season carries several versions rather than one — eight of them in the second year alone.
Season 1
53sThe original three sisters — Shannen Doherty, Holly Marie Combs and Alyssa Milano — with the Book of Shadows and the manor. Seven variants circulated across this season as clips, effects and billing order were adjusted.
Season 2
51sRe-cut from the new season, and the most variable year the show ever had: eight distinct versions of these credits went out across the season.
Season 3
49sDoherty's last season, and the last time Prue appears in the titles at all.
Season 4
52sThe rebuild. Doherty is gone, Rose McGowan arrives as Paige, and the billing is reordered around the loss — Milano moves to first, McGowan second, and Combs is moved to the end on an 'and' credit. Julian McMahon joins the main cast in the premiere.
Season 5
51sRe-cut again, in five versions across the season.
Season 6
50sFour versions this year, adjusting as the cast of each episode did.
Season 7
51sThe churn finally settles — two versions across the whole season, against eight in the second.
Season 8
50sKaley Cuoco is added as Billie, and Brian Krause gives up the first supporting slot to her and is credited last, after leaving partway through the season.